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Politics : THE WHITE HOUSE -- Ignore unavailable to you. Want to Upgrade?


To: Gersh Avery who wrote (2540)3/18/2007 5:50:17 PM
From: Brumar89  Read Replies (1) | Respond to of 25737
 
I read it on wikipedia. Didn't preserve the link. Here though is something:

Both male and female plants look alike until they flower; then the male plants turn yellow and die, whereas the female plants remain dark green for another month until the seed ripens. Male plants are ready to harvest for fiber when the leaves change from dark green to light brown. The best yield of fiber (and only male plants are used) is then obtained. Hemp is harvested when the staminate flowers are beginning to open and shed their pollen. Seed is harvested from the female plants when most of it falls off when the plant is shaken.
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Yields of hemp per hectare depend on climatic conditions, variety grown, soil and nutrition, and spacing of plants in the field. Weight of dried stems per hectare is usually between 4.5 to 7.5 T, with a yield of fiber about 25% of the dried stalks. Usually the taller the plant, the longer will be the fiber with a greater yield per plant. In some areas fiber yields of 850- 1,700 kg/ha compared to 1,300-1,700 kg/ha seed and 30 kg ganja. The U.S.S.R. is the largest producer of hemp in the world, producing about 33% of hemp fiber, annually 105,000 MT compared to the world production of 255,000 MT (excepting China). France and West Germany are the chief importers, Italy and Yugoslavia exporters. Chile, China, Japan and Peru also produce hemp. Narcotic production is usually clandestine, but there is legal marijuana production in India. India is the main producer and exporter of oil from the seed.

www.hort.purdue.edu/newcrop/duke_energy/Cannabis_sativa.html